Open Access content on DeepDyve
From our earliest days, we have aggregated content from major OA publishers that use the CC-BY license, such as PLOS, in order to provide our subscribers with the convenience of having as much relevant content as possible at their fingertips on our service. We currently have over 25 million OA articles in our collection. These articles can be read and downloaded by all DeepDyve subscribers.
There may be situations in which a publisher has made an article open access, but it is only free to read on non-commercial sites (the OA license known as CC-BY NC), so in those cases, DeepDyve marks the article as free to read, but we provide an easy button to take users to the journal site to read it for free.
In other cases, a Publisher may not have provided us with the specific type of license they are using, or the license type may have changed. In those cases, you may find an article with one level of access in DeepDyve, but another level of access on the publisher site or through OA tools such as UnPayWall. Our apologies for this confusion, we work with the best available information we have, and we may not always have it right. We would appreciate your notifying us so that we can resolve the problem and improve our site.